This service manual contains basic information required for after-sales service of the color laser printer. This information is vital to the service
technician to maintain the high printing quality and performance of the printer.
This service manual covers the HL-3450CN color laser printer.
This manual consists of the following chapters:
CHAPTER 1: OUTLINE OF PRODUCT
Features, parts names, internal structure, and description of the control panel.
CHAPTER 2: SPECIFICATIONS
Specifications, etc.
CHAPTER 3: INSTALLATION
Installation conditions and installation procedures.
CHAPTER 4: STRUCTURE OF SYSTEM COMPONENTS
Basic operation of the mechanical system, the electrical system and the electrical
circuits and their timing information.
CHAPTER 5: CONTROL PANEL OPERATION
Operation and setting procedures on the control panel.
CHAPTER 6: PERIODIC MAINTENANCE
Description of periodic maintenance parts and procedures for periodic replacement
and cleaning.
CHAPTER 7: DISASSEMBLY
Procedures for replacement of the mechanical system parts.
CHAPTER 8: TROUBLESHOOTING
Description of error messages on the control panel, troubleshooting image failure,
etc.
APPENDICES : SERIAL NO. DESCRIPTIONS, ETC.